>> atria. >> the atria. okay. so, we have the five career pathways for health science. so, students who are interested in computers would go into the health informatics or radiology tract. those that are interested in law would go into support services, where they're learning about medical ethics. and then we have what we call more traditional medical programs. >> it's a tough program that offers priceless experience. someday, people could be thanking these students for saving their lives. >> coming up, we'll take a tour of a fascinating museum that celebrates more than 100 years of flight. music i want some more. what's he doing? please sir, i want some more. more? he has asked for... thank you. well he did say please... yes he did. and thank you. please and thank you. pass it on. (crowd of children) thank you. >> from up high, this looks like a very crowded airport, but it's actually a century of aviation history frozen in time. this is the pima air and space museum. located in the tucson, arizona, desert, it's home to some of the most important and unusual machines t

we're told that he's an american from -- originally from atria but now an american.ve an american winning the boston marathon. meaningful, inspiring, important day especially after the bombings last year, a day of pride and inspiration and hope and determination as we salute them and all the 36,000 runners with their heart, we're all in a way running with many of them. >> and many runners still running, we should mention. the man won in just over two hours. this is the first time an american has won the race since the early 1980's. real victory there. a man running for america. we'll keep you posted. a lot of runners still running and they'll be coming in all day. >> like at 6:30. last ones won't be through, if not until after that. >> and they count, too. as a runner myself, you count. new fallout over a decision by the obama administration that could effectively delay construction of the keystone pipeline until after the 2016 election. this comes after the state department said it would hold off on making a decision about the project until a court in nebraska weigh